Sounding horns.



A. WILLIAMSON.

SOUNDINGQHORNS. APPLIOATIOH FILED run. 29, 19io.

Patentd Feb. 20, 1912.

' 2 Sums-sum 1.

SJ m monitor,

A. WILLIAMSON.

sormnnw HORNE] I APPLIGA'HON FILED MAR. 29, 1910. I 1,017,938, PatentedFeb. 20,1912.

2 sums-sum 2.

ALVA WILLIAMSON, or ATLANTIC, IOWA.

SOUNDING- HORNS.

Specification of Letters Patent.

' Patented Feb. 20, 1912'.

Application filed March 29, 1910. Serial me s.

To all whom it may concem:

Be it known thatl, ALVA WIILLAIMSQN, a citizen of the United States, anda resident of Atlantic, in the county of Cass and State of Iowa, haveinvented certain new and useful Improvements in Sounding Horns, of whichthe following is aspecification, ref erence being had to theaccompanying drawmgs. y

The object of my invention is to provide simple, durable and inexpensivemeans,

whereby the intermittent exhaust from an explosive engine may beutilized to operate a wind instrument such as a horn in a continuous,even, and uniform manner and also to provide convenient means whereby anoperator may, by foot pressure, open the valves for permitting the windinstrument to be sounded.

My invention conslsts in the construction, arrangement and combinationof an explosive engine, of means whereby the. objects contemplated maybe attained, as hereinafter more fully set forth, pointed out in myclaims and illustrated in the accompanying drawings, in which:

Figure l-shows a side view of my invention used in connection with anautomo bile which is shown in dotted outline. Fig.

2 shows an enlarged, detail, side view ofan apparatus embodying my.inventionf iF-igu 3 shows a similar vleiifi partly in section. Fig. 4shows an enlar ed, detail, sectional view of the valve device foropening and closing *the passageway leading to the storage chamber, andillustrating-1a modification. Fig. 5 shows a side view ofI-aH-deviceembodying my invention applied. to launch, the outline of the latterbeing in= dicated by dotted lines, and Fig. 6 shows a side'view of adevice embodying my invention illustrating a modification.

- Referring to the accompanying drawings, I have'used the referencenumeral 1 to indicate the exhaust pipe of: ani'zexplosive en-. 'gine.Gommunioatin'g"with, the exhaust pipe is-="a"-T-connection--3 andcommunicat-f "withfone branch ofthis T connecti on.=is "axpipe'2leadingto a. muflier' 4: of ordinary vconstruction. Communicating withanotherbranch Uf'the T'-connectio'n 3 is a; duplex valve-casing 5 having valveseatsat both ends. .Slidingly mounted within the valve casmg 5 is avalve stem 10 having a valve 6 at one end and another valve '1 at theother. end. I provide 'for supporting the valve stem within the casingby means of two guidedevices 10. By this arrangement it 1s obvious thatwhen the valves arein the posltion shown in Fig. 3,-all of the explodedgases passing through the exhaust pipe 1 will be directed through themuffler but when the valves are at their opposite limit of movement someof the exploded gases passing through the muffler will enter theinterior of the valve casing 5 and be defiected downwardly through apipe.. 15 at the center of the casing, the outer end of the casing beingclosed by the valve 7.

I provide for normally holding the valves in the position shown in Fig.3 by means of a contractible coil spring 12 attached to the projectingend of the valve, stem 10. In order' to provide for opening the valve topermit the passage of the exploded gases through the pipe 15, Ihaveprovided a lever 11 fulcrumed to a suitable support and connected tothe valve stem. This lever is provided with a rod 13,- whichrod is.attached to a foot lever 14 so that, by the op. erator pressing hisfoot upon the lever 14, the pressure of the spring 12 may be over ,comeand the valves within the casing-.5 may be held to position forpermitting some of the discharge of the explosive engineto pass into thepipe 15. Arranged 1n the pipe 1-5 is 'a check valve 16 of ordinaryconstruction designed to freely permit the passage of exploded gasesthrough the pipe 1 5,and ,to prevent them, from passing back,Communicating with the check valve 16 is. a pipe-.17 which leads to..a,cylindrical tank 18. -This tankis dividedinto two com partments; thecompartment. 19; forming a compression chamber and the compartment.

20 forming an expansion chamberto which ga pa i g .i.=- 0 gh hcompressio chamber to the expansio chamber? m ziyibe regulatedat, thewill oi the operator.

I In the modification illustrated in Fig; 41, I

have provided means whereby allof the burned gases passing through theexhaust pipe will be directed into the storage cham her to therebyincrease.the capacity of the j with the wind instruments. Themodification consists of asliding hood 37 attached to the valve stem 10and so arranged that When the valve is moved to its limit of movementtoward the right, as shown in said figure, the

hood will completely close the portion of their-connection that extendsto the mufller while permitting the entire quantity of burned gases.passing through the exhaust pipe to enter the valve casing 5.

In the modified form shown in Fig. ;6, the storage and escape chambersare indicated by the reference symbol 18. They are provided with aby-pass and controlling valve indicated by the symbol 21. A number ofbosses are. shown on the escape chamber to indicate where the soundinghorns may be attached. The muflier-is indicated bythe symbol 4 and hasan escape pipe 1 admitted into it. Leading from the mufl'ler is theduplex valve casing .5 and extended from this casing is the pipe 15provided with'a.

check valve 16 which also communicates tank..18. Within. the pipe 16 isa puppet valve" B of ordinary-constructionby which the burned. gases maybe discharged when the-pressure thereon exceeds a certain predeterminedamount. 1 By means of this .1 puppet valve B. I provide forautomatically 5. chamber 19 and I so arrange the other parts regulatingthe pressure-within the storage that an excessive amount of the burnedgases under pressure will be delivered through the .pipe 17, the surplthrough the puppet valve B.

" In the modified form shown in Fig. '5, I

ator manipulates the foot lever 14 have illustrated a launch by dottedlines 111- dicatecl by the reference symbol .13 The remaining partsare-the same ashereinbefore described except that I employ a whistle 26.applied to the exhaust chamber 20 instead 0 the horns shown in the otherforms of the invention. In practicaloperation and assuming that theexplosive engine is running and that the- .exhausttherefrom ispassingthrough the pipe 1, it is obvious that'when the valve 6 is initsclosed position all of the burned gases will pass through the mufiler inthe ordinary manner. -However when the oper-;

art of the products of combustion will pass t rough the pipe 15 into thestorage chamber, The.

check valve 16 will prevent a back pressure upon the pipe 15 and retainburned gases under pressure in the chamber 19. This gas under pressurein the chamber 19 may pass out slowly through the valve 21 into the.exhaust chamber and from thence into the wind instrument. By thisarrangement I however that if pipe 17 leading to the cylindricalv usescaping am enabled to obtain a continuous,-uniform and steady flow ofburned gases through the wind instrument to produce a uniform, evensound which may be continued indefinitely so long as the engine isrunning. I

The particular form of the' uplex valve is not essential to thesuccessful operation of my invention as it is obvious that various othermeans may be employed for directing cation with the exhaust pipe,saidexhaust pipe being provided with an outlet other.

than the one leading to the storage receptacle, a' manually operated,"valvedevice either into the storage receptacle orthrough the saidoutlet, a check valve interposed between the exhaust pipe and thestorage receptacle to prevent the flow of gas from the storagereceptacle to the-exhaust pipzing pressure equalizing receptacle, therea restricted passageway provided between said receptacle. and thestoragereceptacle, and a wind instrument operatlvely connected with theequalizing receptacle, the peawherebythe exhaust gases may be directedsageway from-the equalizing receptacle 'to a the wind instrument beingunobstructed, whereby gas. under fluctuating pressure in theexhaustipipe may either be discharged or directed into the storagereceptacle, and

the said gas .under une ual pressure in the storage receptacle may edelivered to the wind instrument at a substantially uniform pressure,for the purposes stated. V

2. In a device of the class described, the combination of an engineexhaust pipe, an inelastic gas storage receptacle in communication withthe exhaust-1 pipe, said exhaust pipe being provided with an outletother .than the one leading to the storage receptacle, a manuallyoperated valve device whereby the. exhaust gases may be directed eitherinto the storage receptacleor' through said outlet, a check valveinterposed between the exhaust pipe and the storage re-. ceptacle' toprevent the flow of gas from the storage receptacle to the exhaust pipe,

a pressure equalizmg receptacle, there being a restricted passagewayprovided between said receptacle and the stora and a wind instrumentoperatlvely connected with the equalizing receptacle, the passagewayfrom the equalizing receptacle to receptacle,

the wind instr'tiinent being unobstructed ceptacle to relieve excessivepressure within 1.9 whereby gas under fluctuating pressure in thestorage receptacle. the exhaust pipe may either be discharged Intestimony whereof I afiix my signaor directed into the storagereceptacle, and ture, in presence of two witnesses. the said gas underunequal pressure in the storage receptacle may be delivered to theALVA-WILLIAMSON. wind instrument at a substantial uniform Witnesses:pressure, and a suitable valve arranged be-- W. W. STRAIGHT,

tween the check valve and the storage re- THOMAS B. SWAN.

